[go: up one dir, main page]

SE8500342L - Forfarande for behandling av cellulosamassa - Google Patents

Forfarande for behandling av cellulosamassa

Info

Publication number
SE8500342L
SE8500342L SE8500342A SE8500342A SE8500342L SE 8500342 L SE8500342 L SE 8500342L SE 8500342 A SE8500342 A SE 8500342A SE 8500342 A SE8500342 A SE 8500342A SE 8500342 L SE8500342 L SE 8500342L
Authority
SE
Sweden
Prior art keywords
treatment stage
cellulosamassa
treating
gaseous oxygen
foam
Prior art date
Application number
SE8500342A
Other languages
Unknown language ( )
English (en)
Other versions
SE452896B (sv
SE8500342D0 (sv
Inventor
S-G Svensson
L Blomberg
I Croon
Original Assignee
Aga Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aga Ab filed Critical Aga Ab
Priority to SE8500342A priority Critical patent/SE452896B/sv
Publication of SE8500342D0 publication Critical patent/SE8500342D0/sv
Priority to CH218/86A priority patent/CH668788A5/de
Priority to DE19863601808 priority patent/DE3601808A1/de
Priority to JP61012930A priority patent/JPS61201094A/ja
Priority to BR8600268A priority patent/BR8600268A/pt
Priority to FI860328A priority patent/FI78326C/sv
Priority to NO860249A priority patent/NO860249L/no
Priority to FR8601014A priority patent/FR2576331B1/fr
Publication of SE8500342L publication Critical patent/SE8500342L/sv
Publication of SE452896B publication Critical patent/SE452896B/sv

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
SE8500342A 1985-01-24 1985-01-24 Forfarande for behandling av cellulosamassor SE452896B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE8500342A SE452896B (sv) 1985-01-24 1985-01-24 Forfarande for behandling av cellulosamassor
CH218/86A CH668788A5 (de) 1985-01-24 1986-01-21 Verfahren zur behandlung von cellulosepulpe.
DE19863601808 DE3601808A1 (de) 1985-01-24 1986-01-22 Verfahren zur behandlung einer cellulosepulpe
JP61012930A JPS61201094A (ja) 1985-01-24 1986-01-23 セルロ−スパルプの処理方法
BR8600268A BR8600268A (pt) 1985-01-24 1986-01-23 Processo para a producao de polpa de celulose
FI860328A FI78326C (sv) 1985-01-24 1986-01-23 Förfarande för behandling av cellulosamassa
NO860249A NO860249L (no) 1985-01-24 1986-01-23 Fremgangsmaate ved behandling av cellulose.
FR8601014A FR2576331B1 (fr) 1985-01-24 1986-01-24 Procede de traitement de pulpe de cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8500342A SE452896B (sv) 1985-01-24 1985-01-24 Forfarande for behandling av cellulosamassor

Publications (3)

Publication Number Publication Date
SE8500342D0 SE8500342D0 (sv) 1985-01-24
SE8500342L true SE8500342L (sv) 1986-07-25
SE452896B SE452896B (sv) 1987-12-21

Family

ID=20358888

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8500342A SE452896B (sv) 1985-01-24 1985-01-24 Forfarande for behandling av cellulosamassor

Country Status (8)

Country Link
JP (1) JPS61201094A (sv)
BR (1) BR8600268A (sv)
CH (1) CH668788A5 (sv)
DE (1) DE3601808A1 (sv)
FI (1) FI78326C (sv)
FR (1) FR2576331B1 (sv)
NO (1) NO860249L (sv)
SE (1) SE452896B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460202B (sv) * 1987-03-13 1989-09-18 Aga Ab Saett vid behandling av ett material med en gas i en vaetska
CN110670400B (zh) * 2019-09-25 2020-11-27 刘澄 一种用于卫生巾艾绒芯片立式蒸煮釜

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE126265C (sv) *
SE390549C (sv) * 1973-12-20 1986-04-14 Ahlstroem Oy Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo
JPS5249306A (en) * 1975-10-20 1977-04-20 Toyo Pulp Co Ltd Process for bleaching pulp under normal pressure with air bubble
JPS5299302A (en) * 1976-02-13 1977-08-20 Toyo Pulp Co Ltd Process for separating lignin from cellulose fiber
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre

Also Published As

Publication number Publication date
SE452896B (sv) 1987-12-21
FI78326B (fi) 1989-03-31
DE3601808C2 (sv) 1988-12-08
FR2576331A1 (fr) 1986-07-25
SE8500342D0 (sv) 1985-01-24
NO860249L (no) 1986-07-25
CH668788A5 (de) 1989-01-31
JPS61201094A (ja) 1986-09-05
FI860328L (fi) 1986-07-25
FI78326C (sv) 1989-07-10
DE3601808A1 (de) 1986-07-24
FR2576331B1 (fr) 1988-06-17
FI860328A0 (fi) 1986-01-23
BR8600268A (pt) 1986-10-07

Similar Documents

Publication Publication Date Title
FI69135C (fi) Foerfarande foer syrgasblekning av cellulosamassa
ES481711A1 (es) Procedimiento para el tratamiento de agua.
HU892223D0 (en) Process for treating organic compounds
JPS558835A (en) Treatment of surplus sludge
ATE111371T1 (de) Vorrichtung und verfahren zur behandlung von pulpe.
FI943870A0 (sv) Förfarande för behandling av cellulosa
EP0237793A3 (en) Process and apparatus for treating and disinfecting swimming-pool and bath-tub water by means of chlorine and ozone
SE8503153D0 (sv) Delignifiering
ATE88988T1 (de) Verfahren und vorrichtung zur herstellung von ozonhaeltigen gasen und loesungen.
DE3765657D1 (de) Verfahren zur herstellung von n-methylpiperazin.
SE8500342L (sv) Forfarande for behandling av cellulosamassa
ATE7590T1 (de) Verfahren zur herstellung von peroxiden zweiwertiger metalle.
NO920828L (no) Fremgangsmaate for delignifisering av celluloseholdige raastoffer
ATA292789A (de) Verfahren zum bleichen von cellulosehaeltigen materialien sowie anlage zur durchfuehrung des verfahrens
SE8300388D0 (sv) Apparatur for behandling av lignocellulosamaterial med kveveoxid och syre
ATE151824T1 (de) Aufschlussverfahren
GB2013167A (en) Process for the Backwashing and/or the Conditioning of Granular Liquid Treatment Beds
SE8401716D0 (sv) Forfarande for framstellning av kveveoxider
FI831474A0 (fi) Behandling av massa med syre
SE8404949D0 (sv) Forfaringssett vid framstellning av pappersmassa i hogt utbyte
GB1556005A (en) Process for ozone treatment of water
SE8006790L (sv) Forfarande for framstellning av vattenlosning av kalciumnitrit
ATE41918T1 (de) Verfahren zur herstellung von trihydroxybenzolen.
GB1474839A (en) Process for making calcium sulphate alpha-semihydrate and apparatus used therein
UA12558A (uk) Спосіб одержаhhя харчової добавки

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8500342-4

Effective date: 19910109

Format of ref document f/p: F